/*
// Licensed to Julian Hyde under one or more contributor license
// agreements. See the NOTICE file distributed with this work for
// additional information regarding copyright ownership.
//
// Julian Hyde licenses this file to you under the Apache License,
// Version 2.0 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 */
package org.olap4j.impl;

import java.util.*;

/**
 * Implementation of {@link Olap4jUtilCompatible} which runs in JDK 1.4.
 * 
 * @author jhyde
 * @since Feb 5, 2007
 */
public class Olap4jUtilCompatibleJdk14 implements Olap4jUtilCompatible {
	public final String quotePattern(String s) {
		int slashEIndex = s.indexOf("\\E");
		if (slashEIndex == -1) {
			return "\\Q" + s + "\\E";
		}
		StringBuilder sb = new StringBuilder(s.length() * 2);
		sb.append("\\Q");
		int current = 0;
		while ((slashEIndex = s.indexOf("\\E", current)) != -1) {
			sb.append(s.substring(current, slashEIndex));
			current = slashEIndex + 2;
			sb.append("\\E\\\\E\\Q");
		}
		sb.append(s.substring(current, s.length()));
		sb.append("\\E");
		return sb.toString();
	}

	public final <E extends Enum<E>> Set<E> enumSetOf(E first, E... rest) {
		HashSet<E> set = new HashSet<E>();
		set.add(first);
		set.addAll(Arrays.asList(rest));
		return set;
	}

	public final <E extends Enum<E>> Set<E> enumSetNoneOf(Class<E> elementType) {
		return new HashSet<E>();
	}

	public final <E extends Enum<E>> Set<E> enumSetAllOf(Class<E> elementType) {
		return new HashSet<E>(Arrays.asList(elementType.getEnumConstants()));
	}
}

// End Olap4jUtilCompatibleJdk14.java
